Distribution and environmental impact of coal-mining wastes in Upper Silesia, Poland

Szczepańska, Jadwiga; Twardowską, Irena

doi:10.1007/s002540050422

Cited by 118 publications

(63 citation statements)

References 4 publications

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“…Metal-containing wastewater is created by the interaction of air and water with sulfides, mainly pyrite (FeS 2 ), found in overburden piles consisting of sub-commercial grade mining material leftover from the mining process and also in mine shafts. The formation of acidic wastewaters can continue even 10s and 100 years after mine closure, if the conditions remain favorable (Bechard et al, 1994;Szczepanska and Twardowska, 1999).…”

Section: Introductionmentioning

confidence: 99%

Sulfidogenic fluidized‐bed treatment of metal‐containing wastewater at low and high temperatures

Şahinkaya

Özkaya

Kaksonen

et al. 2006

Biotech & Bioengineering

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The applicability of a fluidized-bed reactor (FBR)-based sulfate reducing bioprocess was investigated for the treatment of iron-containing (40-90 mg/L) acidic wastewater at low (8 degrees C) and high (65 degrees C) temperatures. The FBRs operated at low and high temperatures were inoculated with cultures of sulfate-reducing bacteria (SRB) originally enriched from arctic and hot mining environments, respectively. Ethanol was supplemented as carbon and electron source for SRB. At 8 degrees C, ethanol oxidation and sulfate reduction rates increased steadily and reached 320 and 265 mg/L.day, respectively, after 1 month of operation. After this point, the rates did not change significantly during 130 days of operation. Despite the complete ethanol oxidation and iron precipitation, the average sulfate reduction efficiency was 35 +/- 4% between days 30 and 130 due to the accumulation of acetate. At 65 degrees C, a rapid startup was observed as 99.9, 46, and 29% ethanol, sulfate, acetate removals, in respective order, were observed after 6 days. The feed pH was decreased gradually from its initial value of 6 to around 3.7 during 100 days of operation. The wastewater pH of 4.3-4.4 was neutralized by the alkalinity produced in acetate oxidation and the average effluent pH was 7.8 +/- 0.8. As in the low temperature FBR, acetate accumulated. Hence, the oxidation of acetate is the rate-limiting step in the sulfidogenic ethanol oxidation by thermophilic and psychrotrophic SRB. The sulfate reduction rate is three times and acetate oxidation rate is four times higher at 65 degrees C than at 8 degrees C.

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Section: Introductionmentioning

confidence: 99%

Sulfidogenic fluidized‐bed treatment of metal‐containing wastewater at low and high temperatures

Şahinkaya

Özkaya

Kaksonen

et al. 2006

Biotech & Bioengineering

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“…The coal mining industry in Poland generates approximately 30 millions Mg of mining wastes per year and it is estimated that each 1 Mg of coal generates 0.4-0.5 Mg of waste material (SZCZEPAŃSKA & TWARDOWSKA, 1999;GAWOR, 2014a). Due to the fact that the amount of coal in the waste material can be up to 10% it can be estimated that the total potential amount of recovered coal from the dumps in USCB will account for more than 45 million Mg (GAWOR, 2013(GAWOR, , 2014a.…”

Section: Recovery Of Secondary Materials From Coal Mining Waste Dumpsmentioning

confidence: 99%

Potential conflicts connected with the recovery of secondary materials from post mining waste dump

Gawor

2017

Environmental &Amp; Socio-Economic Studies

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Coal mine spoil dumping grounds are present in the landscape of every mining region. Although the composition of waste material is in general safe for the environment (sedimentary rocks -sandstones, mudstones and siltstones), there may be up to 10% of coal particles in disposed wastes. The presence of organic material causes self-ignition processes and fire hazards. There is a need and the possibility of the recovery of coal, and which should be conducted according to legal regulations and environmental protection rules. The recovery should also be preceded by a feasibility study, a drilling campaign, laboratory tests and requires different environmental permissions. Recovery processes are connected with the work of a preparation plant, which is usually linked with protests from the local community and potential conflicts. This article presents the most significant hazards to the environment, health and human life connected with the functions associated with the installation of the recovery processes of coal from waste material deposited on the dumps. The methods of reducing these threats are described with regards to legal regulations, particularly law deeds concerning the safe recovery processes and further reclamation and restoration of degraded post-mining dumping grounds. The role and participation of interested community members at the preparation for investment stage as well as the period of realization of the preparation processes is described. The question of re-using and managing the post-mining dumping grounds after completion of the recovery processes is discussed.

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“…2001;Szczepańska i twardowska 1999Szczepańska i twardowska , 2004zásterová i in. 2015), brak jest obecnie wyczerpującej i aktualnej inwentaryzacji oraz szczegółowych map tematycznych tych obiektów.…”

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Valorization of coal mining waste dumps from he mines of Katowicki Holding Węglowy

Probierz

Gawor

Jonczy

et al. 2017

Gospodarka Surowcami Mineralnymi

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Waloryzacja zwałowisk odpadów pogórniczych z kopalń Katowickiego Holdingu Węglowego S.A. WprowadzenieWydobyty na powierzchnię urobek węglowy, przed jego wykorzystaniem jako produkt handlowy, jest poddawany zazwyczaj procesom przeróbki mechanicznej, która w ogólnym zarysie polega na oddzieleniu węgla od skały płonnej. Procesom eksploatacji węgla (niezależnie od stosowanej technologii) oraz jego przeróbki niemal zawsze towarzyszy zatem skała płonna. Skała ta stanowi zazwyczaj odpad, bowiem jedynie jej część jest wykorzystywana np. do podsadzania wyrobisk górniczych czy rekultywacji powierzchni. odpady (skały płonne) pochodzą zarówno ze skał karbońskich serii litostratygraficznych (m.in. z robót udostępniających, przygotowawczych oraz eksploatacyjnych) jak i z utworów nadkła-du karbonu podczas głębienia szybów. Składowane na zwałowiskach odpady są rezultatem procesów przeróbki mechanicznej węgla, głównie wzbogacania węgla (odpady płuczkowe) i flotacji (najdrobniejsze klasy ziarnowe). Wielkość udziału węgla w odpadach składowa-nych na zwałowiskach uzależniona jest natomiast od skuteczności procesów przeróbki.Wielkość wszystkich odpadów pogórniczych w Polsce wykazuje wyraźną tendencję malejącą od ponad 90 mln Mg w 1991 r. do około 71 mln Mg w 2014 r. W 2014 r. ponad 85% odpadów pochodzących z 41 kopalń węgla kamiennego zagospodarowano pod ziemią (lokowanie odpadów, podsadzka sucha, podsadzka samoutwardzalna, uszczelnianie zrobów zawałowych). Pozostała część odpadów składowana była natomiast na zwałowiskach

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Distribution and environmental impact of coal-mining wastes in Upper Silesia, Poland

Cited by 118 publications

References 4 publications

Sulfidogenic fluidized‐bed treatment of metal‐containing wastewater at low and high temperatures

Sulfidogenic fluidized‐bed treatment of metal‐containing wastewater at low and high temperatures

Potential conflicts connected with the recovery of secondary materials from post mining waste dump

Valorization of coal mining waste dumps from he mines of Katowicki Holding Węglowy

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